/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

#include "StreamTaskStateInitializerImpl.h"

KeyGroupRange *StreamTaskStateInitializerImpl::computeKeyGroupRangeForOperatorIndex(
    int maxParallelism,
    int parallelism,
    int operatorIndex)
{
    int start = ((operatorIndex * maxParallelism + parallelism - 1) / parallelism);
    int end = ((operatorIndex + 1) * maxParallelism - 1) / parallelism;
    return new KeyGroupRange(start, end);
}